| Original Articles |
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Generation of Very Energetic Ions from Intense Femtosecond
Laser Interactions with Rare Gas Clusters in a Dense Jet |
| LI Shao-Hui1,2;WANG Cheng1;ZHU Pin-Pin1;WANG Xiang-Xin1;LI Ru-Xin1;NI Guo-Quan1;XU Zhi-Zhan1 |
| 1Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
2Department of Physics, Shantou University, Shantou 515063 |
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| Cite this article: |
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LI Shao-Hui, WANG Cheng, ZHU Pin-Pin et al 2003 Chin. Phys. Lett. 20 1247-1250 |
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Abstract Very energetic ions, which are detected by time-of-flight spectrometry with the maximum energy up to 1.3 MeV and an average energy of 68 keV, are generated in the explosion of large Xe clusters in a dense jet irradiated with a high intensity (～1016W/cm2) 50 fs laser pulse from a Ti:sapphire TW laser at 790 nm wavelength. The interaction of intense laser pulses with a jet of argon clusters is also performed and high average ion energies are observed. The dependence of energy of the ions on gas backing pressure is examined, suggesting that the results are consistent with the absorption efficiency of the laser energy by the cluster plasmas.
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| Keywords:
36.40.-c
36.40.Gk
52.50.Jm
52.40.Nk
25.45.-z
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Published: 01 August 2003
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| PACS: |
36.40.-c
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(Atomic and molecular clusters)
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36.40.Gk
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(Plasma and collective effects in clusters)
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52.50.Jm
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(Plasma production and heating by laser beams (laser-foil, laser-cluster, etc.))
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52.40.Nk
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25.45.-z
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(2H-induced reactions)
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Abstract
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